Mathematics, 28.07.2020 22:01, Masonb5993
Location is known to affect the number, of a particular item, sold by an auto parts facility. Two different locations, A and B, are selected on an experimental basis. Location A was observed for 13 days and location B was observed for 18 days. The number of the particular items sold per day was recorded for each location. On average, location A sold 39 of these items with a sample standard deviation of 8 and location B sold 55 of these items with a sample standard deviation of 2. Select a 90% confidence interval for the difference in the true means of items sold at location A and B.
a) [-17.95, -14.05]
b) [-19.85, -12.15]
c) [35.78, 42.22]
d) [90.78, 97.22]
e) [51.78, 58.22]
f) none of the above
Answers: 2
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Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?
Answers: 1
Location is known to affect the number, of a particular item, sold by an auto parts facility. Two di...